Camera optical lens comprising six lenses of −++−+− refractive powers

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens, and a sixth lens. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary Metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises six lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: a first lens L1, an aperture S1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. Optical element like optical filter GF can be arranged betweenthe sixth lens L6 and the image surface Si.

The first lens L1 is made of plastic material, the second lens L2 ismade of plastic material, the third lens L3 is made of plastic material,the fourth lens L4 is made of plastic material, the fifth lens L5 ismade of plastic material, the sixth lens L6 is made of glass material.

The second lens L2 has a positive refractive power and the third lens L3has a positive refractive power.

Here, the focal length of the camera optical lens 10 is defined as f,the focal length of the first lens L1 is defined as f1, the refractivepower of the sixth lens L6 is defined as n6, the thickness on-axis ofthe sixth lens L6 is defined as d11 and the total optical length of thecamera optical lens is defined as TTL. The camera optical lens 10satisfies the following conditions: −3≤f1/f≤−1, 1.7≤n6≤2.2,0.03≤d11/TTL≤0.075.

Condition −3≤f1/f≤−1 fixes the negative refractive power of the firstlens L1. If the upper limit of the set value is exceeded, although itbenefits the ultra-thin development of lenses, the negative refractivepower of the first lens L1 will be too strong, problem like aberrationis difficult to be corrected, and it is also unfavorable for wide-angledevelopment of lens. On the contrary, if the lower limit of the setvalue is exceeded, the negative refractive power of the first lensbecomes too weak, it is then difficult to develop ultra-thin lenses.Preferably, the following condition shall be satisfied,−2.997≤f1/f≤−1.535.

Condition 1.7≤n6≤2.2 fixes the refractive power of the sixth lens L6,and refractive power within this range benefits the ultra-thindevelopment of lenses, and it also benefits the correction ofaberration. Preferably, the following condition shall be satisfied,1.701≤n6≤2.046.

Condition 0.03≤d11/TTL≤0.075 fixes the ratio between the thicknesson-axis d11 of the sixth lens L6 and the total optical length TTL of thecamera optical lens, and it benefits the ultra-thin development oflenses. Preferably, the following condition shall be satisfied,0.0475≤d11/TTL≤0.0745.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the object side surface of the first lens L1 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has negativerefractive power; the curvature radius of the object side surface of thefirst lens L1 is defined as R1, the curvature radius of the image sidesurface of the first lens L1 is defined as R2, the thickness on-axis ofthe first lens L1 is defined as d1 and the total optical length of thecamera optical lens is defined as TTL, the condition1.01≤(R1+R2)/(R1−R2)≤5.68 fixes the shape of the first lens L1, so thatthe first lens L1 can effectively correct system spherical aberration;when the condition 0.02≤d1/TTL≤0.07 is met, it is beneficial for therealization of ultra-thin lenses. Preferably, the following conditionsshall be satisfied: 1.61≤(R1+R2)/(R1−R2)≤4.55; 0.04≤d1/TTL≤0.05.

In this embodiment, the object side surface of the second lens L2 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has positiverefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the second lens L2 is defined as f2,the curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of image side surface of the secondlens L2 is defined as R4, the thickness on-axis of the second lens L2 isdefined as d3 and the total optical length of the camera optical lens isdefined as TTL, they satisfy the following condition: 10.8≤f2/f≤275.23,when the condition is met, the positive refractive power of the secondlens L2 is controlled within reasonable scope, the spherical aberrationcaused by the first lens L1 which has negative refractive power and thefield curvature of the system then can be reasonably and effectivelybalanced; the condition 17.49≤(R3+R4)/(R3−R4)≤89.21 fixes the shape ofthe second lens L2, when beyond this range, with the development intothe direction of ultra-thin and wide-angle lenses, problem like on-axischromatic aberration is difficult to be corrected; if the condition0.02≤d3/TTL≤0.07 is met, it is beneficial for the realization ofultra-thin lenses. Preferably, the following conditions shall besatisfied: 17.28≤f2/f≤220.18; 27.99≤(R3+R4)/(R3−R4)≤71.37;0.04≤d3/TTL≤0.05.

In this embodiment, the object side surface of the third lens L3 is aconvex surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has positiverefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the third lens L3 is defined as f3,the curvature radius of the object side surface of the third lens L3 isdefined as R5, the curvature radius of the image side surface of thethird lens L3 is defined as R6, the thickness on-axis of the third lensL3 is defined as d5 and the total optical length of the camera opticallens is defined as TTL, they satisfy the condition: 0.35≤f3/f≤1.16, theappropriate distribution of refractive power makes it possible that thesystem has better imaging quality and lower sensitivity; the condition−1.57≤(R5+R6)/(R5−R6)≤−0.51 fixes the shape of the third lens L3, whenbeyond this range, with the development into the direction of ultra-thinand wide-angle lens, the problem like chromatic aberration is difficultto be corrected; when the condition 0.05≤d5/TTL≤0.17 is met, it isbeneficial for the realization of ultra-thin lenses. Preferably, thefollowing conditions shall be satisfied: 0.56≤f3/f≤0.93;−0.98≤(R5+R6)/(R5−R6)≤−0.64; 0.08≤d5/TTL≤0.14.

In this embodiment, the object side surface of the fourth lens L4 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has negativerefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the fourth lens L4 is defined as f4,the curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8, the thickness on-axis of the fourthlens L4 is defined as d7 and the total optical length of the cameraoptical lens is defined as TTL, they satisfy the condition:−3.77≤f4/f≤−1.08, the appropriate distribution of refractive power makesit possible that the system has better imaging quality and lowersensitivity; the condition −5.99≤(R7+R8)/(R7−R8)≤−1.62 fixes the shapeof the fourth lens L4, when beyond this range, with the development intothe direction of ultra-thin and wide-angle lens, the problem likechromatic aberration is difficult to be corrected; when the condition0.03≤d7/TTL≤0.11 is met, it is beneficial for realization of ultra-thinlenses. Preferably, the following conditions shall be satisfied:−2.36≤f4/f≤−1.36; −3.74≤(R7+R8)/(R7−R8)≤−2.02; 0.04≤d7/TTL≤0.09.

In this embodiment, the object side surface of the fifth lens L5 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has positiverefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the fifth lens L5 is defined as f5,the curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10, the thickness on-axis of the fifth lensL5 is defined as d9 and the total optical length of the camera opticallens is defined as TTL, they satisfy the condition: 0.31≤f5/f≤1.06, thelimitation on the fifth lens L5 can effectively make the light angle ofthe camera lens flat and the tolerance sensitivity reduces; thecondition 0.79≤(R9+R10)/(R9−R10)≤2.47 fixes the shape of the fifth lensL5, when beyond this range, with the development into the direction ofultra-thin and wide-angle lens, the problem like off-axis chromaticaberration is difficult to be corrected; when the condition0.05≤d9/TTL≤0.16 is met, it is beneficial for the realization ofultra-thin lens. Preferably, the following conditions shall besatisfied: 0.5≤f5/f≤0.85; 1.26≤(R9+R10)/(R9−R10)≤1.97; 0.08≤d9/TTL≤0.13.

In this embodiment, the object side surface of the sixth lens L6 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has negativerefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the sixth lens L6 is defined as f6,the curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12, the thickness on-axis of the sixth lensL6 is defined as d11 and the total optical length of the camera opticallens is defined as TTL, they satisfy the condition: −2.13≤f6/f≤−0.53,the appropriate distribution of refractive power makes it possible thatthe system has better imaging quality and lower sensitivity; thecondition 1.62≤(R11+R12)/(R11−R12)≤6.66 fixes the shape of the sixthlens L6, when beyond this range, with the development into the directionof ultra-thin and wide-angle lenses, the problem like off-axis chromaticaberration is difficult to be corrected; when the condition0.03≤d11/TTL≤0.11 is met, it is beneficial for the realization ofultra-thin lens. Preferably, the following conditions shall besatisfied: −1.33≤f6/f≤−0.66; 2.59≤(R11+R12)/(R11−R12)≤5.32;0.05≤d11/TTL≤0.09.

In this embodiment, the focal length of the camera optical lens 10 isdefined as f and the combined focal length of the first lens and thesecond lens is defined as f12, when the condition −5.72≤f12/f≤−1.34 ismet, the aberration and distortion of the camera lens can be eliminated,and the back focus of the camera lens can be suppressed and theminiaturization characteristics can be maintained. Preferably, thefollowing conditions shall be satisfied: −3.58≤f12/f≤−1.67.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 5.18 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 4.95 mm.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 2.25. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.20.

With such design, the total optical length TTL of the camera opticallens 10 can be made as short as possible, thus the miniaturizationcharacteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of focal length, distance on-axis, curvatureradius, thickness on-axis, inflexion point position and arrest pointposition is mm.

TTL: Optical length (the distance on-axis from the object side surfaceto the image surface of the first lens L1).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd νd R1 7.181 d0= 0.215 nd1 1.5352 ν1 56.09 R2 2.412 d1=0.062 S1 ∞ d2= 0.030 R3 1.379 d3= 0.215 nd2 1.6613 ν2 20.37 R4 1.305 d4=0.035 R5 1.393 d5= 0.530 nd3 1.5352 ν3 56.09 R6 −10.760 d6= 0.595 R7−1.985 d7= 0.257 nd4 1.6613 ν4 20.37 R8 −3.976 d8= 0.230 R9 −4.047 d9=0.452 nd5 1.5352 ν5 56.09 R10 −0.908 d10= 0.049 R11 1.247 d11= 0.350 nd61.7015 ν6 41.24 R12 0.659 d12= 1.380 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the opticalfilter GF;

R14: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive power of the d line;

nd1: The refractive power of the d line of the first lens L1;

nd2: The refractive power of the d line of the second lens L2;

nd3: The refractive power of the d line of the third lens L3;

nd4: The refractive power of the d line of the fourth lens L4;

nd5: The refractive power of the d line of the fifth lens L5;

nd6: The refractive power of the d line of the sixth lens L6;

ndg: The refractive power of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF;

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −5.5503E+01 −1.4700E−01 2.1937E−01 −3.7646E−01 3.1324E−01  4.8749E−02−2.6040E−01  1.0601E−01 R2 −2.7532E+01 −3.3797E−01 2.1250E−01−1.4635E−02 5.6901E−02 −3.2605E−01  2.9800E−01 −8.8697E−02 R3−6.1613E+00 −2.2036E−01 −2.7491E−01   3.6987E−01 8.0348E−02 −2.2225E−01−4.8561E−01  5.0454E−01 R4 −2.4321E+00 −2.6133E−01 −2.4029E−01  3.6076E−01 −5.3565E−02  −2.0523E−01 −1.3254E−02  1.3212E−01 R5 5.0230E−01 −2.4420E−01 1.0023E−01 −4.3782E−02 2.0302E−02 −2.0017E−01 2.3962E−01 −9.9321E−02 R6  9.9395E+01 −1.9755E−02 1.0023E−01−5.5380E−02 8.9305E−03 −1.3540E−02 −4.3263E−02  3.4271E−02 R7−1.8759E−01 −1.4763E−01 4.0500E−02  3.5562E−02 2.5052E−02 −1.7954E−02−2.0469E−02  5.0169E−04 R8  3.0593E+00 −1.8379E−01 1.0666E−01 9.5575E−03 1.4726E−02  9.9784E−03  2.5622E−03 −6.3302E−03 R9 7.2219E+00  1.4736E−02 −1.7130E−02   2.3787E−02 −1.6426E−03 −5.8364E−03 −1.6503E−03  2.0736E−03 R10 −4.8837E+00 −2.1010E−025.2892E−02 −1.3563E−02 −3.5509E−03   5.2658E−04  3.5345E−04 −3.0884E−05R11 −4.7780E+00 −4.6853E−02 9.8313E−03 −3.7390E−04 −1.2591E−04  2.7123E−06  4.0169E−06 −4.3226E−07 R12 −3.9337E+00 −4.0927E−028.5791E−03 −9.0113E−04 −2.5853E−05   1.4944E−05 −8.2964E−07 −3.7494E−08

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image Heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5, P6R1and P6R2 represent respectively the object side surface and image sidesurface of the sixth lens L6. The data in the column named “inflexionpoint position” are the vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” are thevertical distances from the arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 inflexion point inflexion point inflexion point inflexion pointnumber position 1 position 2 position 3 P1R1 1 0.305 P1R2 1 0.275 P2R1 10.375 P2R2 1 0.415 P3R1 1 0.865 P3R2 0 P4R1 2 0.815 1.015 P4R2 1 0.825P5R1 1 1.225 P5R2 3 0.735 1.275 1.415 P6R1 1 0.745 P6R2 1 0.685

TABLE 4 arrest point number arrest point position 1 P1R1 1 0.565 P1R2 10.525 P2R1 1 0.665 P2R2 1 0.715 P3R1 0 P3R2 0 P4R1 0 P4R2 1 1.075 P5R1 0P5R2 0 P6R1 1 2.325 P6R2 1 2.215

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 10 in the first embodiment. FIG. 4shows the field curvature and distortion schematic diagrams after lightwith a wavelength of 555 nm passes the camera optical lens 10 in thefirst embodiment, the field curvature S in FIG. 4 is a field curvaturein the sagittal direction, T is a field curvature in the meridiandirection.

Table 13 shows the various values of the examples 1, 2, 3 and the valuescorresponding with the parameters which are already specified in theconditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.66 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 83.19°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd νd R1 3.843 d0= 0.213 nd1 1.5352 ν1 56.09 R2 2.013 d1=0.077 S1 ∞ d2= 0.027 R3 1.387 d3= 0.213 nd2 1.6613 ν2 20.37 R4 1.341 d4=0.041 R5 1.491 d5= 0.503 nd3 1.5352 ν3 56.09 R6 −12.070 d6= 0.564 R7−1.997 d7= 0.312 nd4 1.6613 ν4 20.37 R8 −4.717 d8= 0.153 R9 −4.076 d9=0.474 nd5 1.5352 ν5 56.09 R10 −0.995 d10= 0.082 R11 1.144 d11= 0.330 nd61.8340 ν6 37.17 R12 0.715 d12= 1.401 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.4763E−01 −1.5575E−02 2.0282E−01 −2.9237E−01  2.1497E−01−1.5633E−03  −9.2641E−02   1.9335E−02 R2 −1.7721E−01 −2.9183E−011.4541E−01 −2.1356E−02  1.5842E−01 −3.7643E−01  1.0200E−01  1.1181E−01R3 −5.7995E−00 −2.1240E−01 −2.2683E−01   3.2371E−01 −5.4094E−02−1.4843E−01  −1.6983E−01   1.4502E−01 R4 −3.0899E−00 −2.3792E−01−1.7426E−01   2.4093E−01 −6.0359E−02 −1.5370E−01  −3.6018E−02  1.2494E−01 R5  9.3942E−01 −2.2714E−01 8.6732E−02 −6.3850E−02−1.6153E−02 −1.8238E−01  2.6512E−01 −1.4020E−01 R6  1.1325E−02−2.0283E−02 8.6732E−02 −6.3565E−02  3.0916E−03 −8.9216E−03  −3.8152E−02  2.2923E−02 R7 −2.8166E−01 −1.3403E−01 2.9233E−02  5.6079E−02 7.5890E−03 5.3597E−04 4.3111E−03 −1.5133E−02 R8  1.2255E−01 −1.7139E−019.0380E−02  5.1857E−03  1.2014E−02 7.2537E−03 6.5507E−04 −3.1934E−03 R9 7.3921E−00  1.5925E−02 −8.5124E−03   2.2426E−02 −1.8237E−03−5.1409E−03  −1.3690E−03   1.7332E−03 R10 −3.9443E−00 −8.0604E−034.7326E−02 −1.2600E−02 −3.2833E−03 4.6011E−04 3.2024E−04 −2.7622E−03 R11−3.9399E−00 −4.6050E−02 8.4556E−03 −3.1812E−04 −1.0459E−04 2.4634E−063.6435E−06 −3.9614E−07 R12 −3.6220E−00 −4.1436E−02 8.2169E−03−8.0412E−04 −3.7118E−05 1.4656E−05 −6.5783E−07  −3.8426E−03

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in the second embodimentof the present invention.

TABLE 7 inflexion point inflexion point inflexion point inflexion pointnumber position 1 position 2 position 3 P1R1 1 0.415 P1R2 1 0.315 P2R1 10.385 P2R2 1 0.415 P3R1 1 0.735 P3R2 0 P4R1 2 0.905 0.975 P4R2 1 0.855P5R1 2 1.205 1.345 P5R2 3 0.745 1.295 1.435 P6R1 1 0.775 P6R2 1 0.725

TABLE 8 arrest point number arrest point position 1 P1R1 1 0.765 P1R2 10.605 P2R1 1 0.675 P2R2 1 0.715 P3R1 0 P3R2 0 P4R1 0 P4R2 1 1.115 P5R1 0P5R2 0 P6R1 1 2.295 P6R2 1 2.225

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 20 in the second embodiment. FIG.8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.508 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 82.94°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

The design information of the camera optical lens 30 in the thirdembodiment of the present invention is shown in the tables 9 and 10.

TABLE 9 R d nd νd R1 3.586 d0= 0.215 nd1 1.5352 ν1 56.09 R2 2.088 d1=0.077 S1 ∞ d2= 0.031 R3 1.458 d3= 0.215 nd2 1.6613 ν2 20.37 R4 1.377 d4=0.038 R5 1.506 d5= 0.495 nd3 1.5352 ν3 56.09 R6 −12.392 d6= 0.545 R7−1.972 d7= 0.339 nd4 1.6613 ν4 20.37 R8 −4.738 d8= 0.135 R9 −4.078 d9=0.494 nd5 1.5352 ν5 56.09 R10 −0.974 d10= 0.128 R11 1.119 d11= 0.305 nd61.8919 ν6 37.13 R12 0.707 d12= 1.375 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.0381E−01 −1.5274E−01 1.9306E−01 −2.9638E−01  2.2371E−01−6.9116E−04 −9.7343E−02 1.4653E−02 R2 −1.6906E−01 −2.9027E−01 1.3969E−01−3.2986E−02  1.5256E−01 −3.5482E−01  1.2712E−01 6.7271E−02 R3−5.9946E−00 −2.1443E−01 −2.2904E−01   3.2556E−01 −5.6957E−02 −1.4979E−01−1.8741E−01 1.2041E−01 R4 −3.2256E+00 −2.3875E−01 −1.7055E−01  2.3626E−01 −6.7917E−02 −1.6267E−01 −3.2324E−02 1.2265E−01 R5 9.9736E−01 −2.2992E−01 3.1868E−02 −5.9900E−02 −1.7430E−02 −1.8313E−01 2.5917E−01 −1.4033E−01  R6  1.2978E−02 −2.5653E−02 8.1668E−02−5.5203E−02  6.2182E−04 −1.1032E−02 −4.0558E−02 2.2092E−02 R7−1.3114E−01 −1.4084E−01 3.2444E−02  5.7446E−02  1.1148E−02  1.6233E−03 4.7233E−03 −1.8970E−02  R8  1.1964E+01 −1.7089E−01 8.9682E−02 4.5408E−03  1.1853E−02  7.1596E−03  5.9293E−04 −3.3180E−03  R9 7.4846E−00  1.6780E−02 −7.5400E−03   2.2375E−02 −1.9574E−03 −5.2322E−03−1.3769E−03 1.7641E−03 R10 −3.8277E−00 −8.4009E−03 4.7600E−02−1.2553E−02 −3.2301E−03  4.7099E−04  3.1964E−04 −3.9546E−05  R11−3.8133E−00 −4.5526E−02 8.2671E−03 −3.1610E−04 −1.0508E−04  2.4543E−06 3.6638E−06 −3.8674E−07  R12 −3.5077E−00 −4.1720E−02 8.3946E−03−3.3439E−04 −1.6336E−05  1.4743E−05 −6.4076E−07 −3.6162E−03 

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 inflexion point inflexion point inflexion point number position1 position 2 P1R1 1 0.445 P1R2 1 0.315 P2R1 1 0.375 P2R2 1 0.415 P3R1 10.715 P3R2 0 P4R1 2 0.905 0.945 P4R2 1 0.865 P5R1 2 1.215 1.335 P5R2 20.745 1.275 P6R1 1 0.785 P6R2 1 0.735

TABLE 12 arrest point number arrest point position 1 P1R1 1 0.775 P1R2 10.595 P2R1 1 0.665 P2R2 1 0.705 P3R1 0 P3R2 0 P4R1 0 P4R2 1 1.125 P5R1 0P5R2 0 P6R1 1 2.315 P6R2 1 2.255

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 30 in the third embodiment. FIG.12 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 30 inthe third embodiment.

The following table 13, in accordance with the above conditions, liststhe values in this embodiment corresponding with each conditionexpression. Apparently, the camera optical system of this embodimentsatisfies the above conditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.502 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 82.96°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment Embodiment Embodiment 1 2 3 f 3.319 3.280 3.273 f1−6.871 −8.211 −9.799 f2 210.537 70.835 600.603 f3 2.333 2.503 2.533 f4−6.264 −5.443 −5.325 f5 2.076 2.325 2.259 f6 −2.630 −3.499 −3.302 f12−6.651 −8.657 −9.365 f12/f −2.004 −2.639 −2.861 (R1 + R2)/(R1 − R2)2.011 3.201 3.788 (R3 + R4)/(R3 − R4) 36.654 59.475 34.985 (R5 + R6)/(R5− R6) −0.771 −0.780 −0.783 (R7 + R8)/(R7 − R8) −2.994 −2.469 −2.426(R9 + R10)/(R9 − R10) 1.579 1.646 1.628 (R11 + R12)/(R11 − R12) 3.2414.330 4.437 f1/f −2.070 −2.503 −2.994 f2/f 63.433 21.595 183.484 f3/f7.029E−01 7.631E−01 7.738E−01 f4/f −1.887 −1.659 −1.627 f5/f 0.625 0.7090.690 f6/f −0.793 −1.067 −1.009 f12/f −2.004 −2.639 −2.861 d1 0.2150.213 0.215 d3 0.215 0.213 0.215 d5 0.530 0.503 0.495 d7 0.257 0.3120.339 d9 0.452 0.474 0.494 d11 0.350 0.330 0.305 Fno 2.000 2.175 2.180TTL 4.713 4.701 4.701 d1/TTL 0.046 0.045 0.046 d3/TTL 0.046 0.045 0.046d5/TTL 0.113 0.107 0.105 d7/TTL 0.055 0.066 0.072 d9/TTL 0.096 0.1010.105 d11/TTL 0.074 0.070 0.065 n1 1.5352 1.5352 1.5352 n2 1.6613 1.66131.6613 n3 1.5352 1.5352 1.5352 n4 1.6613 1.6613 1.6613 n5 1.5352 1.53521.5352 n6 1.7015 1.8340 1.8919 v1 56.0934 56.0934 56.0934 v2 20.372920.3729 20.3729 v3 56.0934 56.0934 56.0934 v4 20.3729 20.3729 20.3729 v556.0934 56.0934 56.0934 v6 41.2394 37.1669 37.1340

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens and a sixth lens; wherein the secondlens has a positive refractive power, the third lens has a positiverefractive power; the camera optical lens further satisfies thefollowing conditions:−3≤f1/f≤−1;1.7≤n6≤2.2;0.03≤d11/TTL≤0.075;1.61≤(R1+R2)/(R1−R2)≤4.55;0.04≤d1/TTL≤0.05; where f: the focal length of the camera optical lens;f1: the focal length of the first lens; n6: the refractive power of thesixth lens; d11: the thickness on-axis of the sixth lens; R1: thecurvature radius of object side surface of thee first lens; R2: thecurvature radius of image side surface of the first lens; d1: thethickness on-axis of the first lens; TTL: the total optical length ofthe camera optical lens.
 2. The camera optical lens as described inclaim 1, wherein the first lens is made of plastic material, the secondlens is made of plastic material, the third lens is made of plasticmaterial, the fourth lens is made of plastic material, the fifth lens ismade of plastic material, the sixth lens is made of glass material. 3.The camera optical lens as described in claim 1, wherein the cameraoptical lens further satisfies the following conditions:−2.997≤f1/f≤−1.535;1.701≤n6≤2.046;0.0475≤d11/TTL≤0.0745.
 4. A camera optical lens comprising, from anobject side to an image side in sequence: a first lens, a second lens, athird lens, a fourth lens, a fifth lens and a sixth lens; wherein thesecond lens has a positive refractive power, the third lens has apositive refractive power; wherein the second lens has a convex objectside surface and a concave image side surface; the camera optical lensfurther satisfies the following conditions:−3≤f1/f≤−1;1.7≤n6≤2.2;0.03≤d11/TTL≤0.075;10.8≤f2/f≤275.23;17.49≤(R3+R4)/(R3−R4)≤89.21;0.02≤d3/TTL≤0.07; where f: the focal length of the camera optical lens;f1: the focal length of the first lens; n6: the refractive power of thesixth lens; d11: the thickness on-axis of the sixth lens; f2: the focallength of the second lens; R3: the curvature radius of the object sidesurface of the second lens; R4: the curvature radius of the image sidesurface of the second lens; d3: the thickness on-axis of the secondlens; TTL: the total optical length of the camera optical lens.
 5. Thecamera optical lens as described in claim 4, wherein the camera opticallens further satisfies the following conditions:17.28≤f2/f≤220.18;27.99≤(R3+R4)/(R3−R4)≤71.37;0.04≤d3/TTL≤0.05.
 6. The camera optical lens as described in claim 1,wherein the third lens has a convex object side surface and a conveximage side surface; the camera optical lens further satisfies thefollowing conditions:0.35≤f3/f≤1.16;−1.57≤(R5+R6)/(R5−R6)≤−0.51;0.05≤d5/TTL≤0.17; where f: the focal length of the camera optical lens;f3: the focal length of the third lens; R5: the curvature radius of theobject side surface of the third lens; R6: the curvature radius of theimage side surface of the third lens; d5: the thickness on-axis of thethird lens; TTL: the total optical length of the camera optical lens. 7.The camera optical lens as described in claim 6, wherein the cameraoptical lens further satisfies the following conditions:0.56≤f3/f≤0.93;−0.98≤(R5+R6)/(R5−R6)≤−0.64;0.08≤d5/TTL≤0.14.
 8. The camera optical lens as described in claim 1,wherein the fourth lens has a negative refractive power with a concaveobject side surface and a convex image side surface; the camera opticallens further satisfies the following conditions:−3.77≤f4/f≤−1.08;−5.99≤(R7+R8)/(R7−R8)≤−1.62;0.03≤d7/TTL≤0.11; where f: the focal length of the camera optical lens;f4: the focal length of the fourth lens; R7: the curvature radius of theobject side surface of the fourth lens; R8: the curvature radius of theimage side surface of the fourth lens; d7: the thickness on-axis of thefourth lens; TTL: the total optical length of the camera optical lens.9. The camera optical lens as described in claim 8, wherein the cameraoptical lens further satisfies the following conditions:−2.36≤f4/f≤−1.36;−3.74≤(R7+R8)/(R7−R8)≤−2.02;0.04≤d7/TTL≤0.09.
 10. The camera optical lens as described in claim 1,wherein the fifth lens has a positive refractive power with a concaveobject side surface and a convex image side surface; the camera opticallens further satisfies the following conditions:0.31≤f5/f≤1.06;0.79≤(R9+R10)/(R9−R10)≤2.47;0.05≤d9/TTL≤0.16; where f: the focal length of the camera optical lens;f5: the focal length of the fifth lens; R9: the curvature radius of theobject side surface of the fifth lens; R10: the curvature radius of theimage side surface of the fifth lens; d9: the thickness on-axis of thefifth lens; TTL: the total optical length of the camera optical lens.11. The camera optical lens as described in claim 10, wherein the cameraoptical lens further satisfies the following conditions:0.5≤f5/f≤0.85;1.26≤(R9+R10)/(R9−R10)≤1.97;0.08≤d9/TTL≤0.13.
 12. The camera optical lens as described in claim 1,wherein the sixth lens has a negative refractive power with a convexobject side surface and a concave image side surface; the camera opticallens further satisfies the following conditions:−2.13≤f6/f≤−0.53;1.62≤(R11+R12)/(R11−R12)≤6.66;0.03≤d11/TTL≤0.11; where f: the focal length of the camera optical lens;f6: the focal length of the sixth lens; R11: the curvature radius of theobject side surface of the sixth lens; R12: the curvature radius of theimage side surface of the sixth lens; d11: the thickness on-axis of thesixth lens; TTL: the total optical length of the camera optical lens.13. The camera optical lens as described in claim 12, wherein the cameraoptical lens further satisfies the following conditions:−1.33≤f6/f≤−0.66;2.59≤(R11+R12)/(R11−R12)≤5.32;0.05≤d11/TTL≤0.09.
 14. The camera optical lens as described in claim 1,wherein the camera optical lens further satisfies the followingconditions:−5.72≤f12/f≤−1.34; where f: the focal length of the camera optical lens;f12: the combined focal length of the first lens and the second lens.15. The camera optical lens as described in claim 14, wherein the cameraoptical lens further satisfies the following conditions:−3.58≤f12/f≤−1.67.
 16. The camera optical lens as described in claim 1,wherein the total optical length TTL of the camera optical lens is lessthan or equal to 5.18 mm.
 17. The camera optical lens as described inclaim 1, wherein the aperture F number of the camera optical lens isless than or equal to 2.25.
 18. The camera optical lens as described inclaim 1, wherein the aperture F number of the camera optical lens isless than or equal to 2.20.
 19. The camera optical lens as described inclaim 4, wherein the aperture F number of the camera optical lens isless than or equal to 2.20.